The rakish fellow you met last night with the suave dance moves, smoothly rehearsed lines, and your number listed as “Goddess #14” in his phone is fine for a flirt, but probably isn’t meet-the-parents material.
Used as an adjective to describe a dashing ladies’ man or a streamlined ship, rakish comes from the fusing of rake + -ish. He is stylishly handsome and prone to saucy, fast behavior. Synonyms include charming, flashy, and immoral.